Wallpaper Wizard features over 100,000 high-resolution wallpapers for your Mac.

Struggling to find beautiful wallpapers for your new MacBook Pro’s high-resolution Retina display? With Wallpaper Wizard for Mac OS X, you can browse over 100,000 high-definition wallpapers with resolutions up to 2880 x 1800 all in one place, saving only the images ones you want to keep. And best of all, Wallpaper Wizard is today’s Two Dollar Tuesday pick, meaning it has 80% off its normal $9.99 price tag.

Wallpaper Wizard allows you to browse its library by category, so you only see images which appeal to you. You can browse for cute cats, stunning beaches, luxury cards, and even exclusive art. You’ll also find special categories for events like Independence Day, Halloween, and Christmas.

If you’re the kind of person who is changing their wallpapers each week because you become bored too easily, you can set Wallpaper Wizard to automatically change it for you at predefined intervals. Simply choose a category and Wallpaper Wizard will cycle through images in that category at random. If it sets one you’re not too keen on, you can use its keyboard shortcut to skip to the next one.

Finally, when you discover a great wallpaper you just have to share with your friends, Wallpaper Wizard lets you do so via Facebook and Twitter. You can even use iCloud to sync wallpapers to your iOS device, so that you can use them on your iPhone, iPad, and iPod touch, too.

I’ve been using Wallpaper Wizard for around a month now, (yes, I paid the full $10!) and I think it’s great. It takes the pain out of finding good wallpapers on the web, and makes it easy to find images you like. At just $2, it’s a steal, but remember: it’s only $2 today.